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US 11,435,138 B2Granted
Heat exchanger for a liquefied natural gas facility
AssigneeConocoPhillips Company
InventorsStuart L. Wilson, Wesley R. Qualls, Matthew C. Gentry, Paula A. Leger, Robert L. Boulanger
Life of this patent
Estimating the term…
Abstract
A method of constructing a plate fin heat exchanger includes joining a first side bar formed from a nickel-iron alloy to a first end of a fin element formed from a nickel-iron alloy through a first nickel-iron alloy bond, and joining a second side bar formed from a nickel-iron alloy to a second end of the fin element through a second nickel-iron alloy bond to create a first layer of the plate fin heat exchanger. The fin element defines a fluid passage.
Claims20
A cryogenic gas processing system comprising:
- a chiller;
- a low temperature separator (LTS) including an inlet fluidically connected to the chiller, a first outlet and a second outlet;
- a flash drum including an inlet fluidically connected to the LTS and a plurality of conduits;
- a heat exchanger fluidically connected to the second outlet of the LTS and the plurality of conduits of the flash drum, the heat exchanger comprising:
- a first side bar formed from a nickel-iron alloy;
- a second side bar formed from the nickel-iron alloy, the second side bar being spaced from the first side bar;
- a fin element formed from the nickel-iron alloy extending between the first side bar and the second side bar forming a first layer of the heat exchanger, the fin element including an inner passage, thereby defining a fluid passage, the fin element formed from the nickel-iron alloy;
- a first nickel-iron alloy bond joining the fin element and the first side bar;
- and
- a second nickel-iron alloy bond joining the fin element and the second side bar,
- wherein the nickel content of the nickel-iron alloy is between about 32% and 42%;
- and
- a pump disposed between the heat exchanger and the second outlet of the LTS to convey an outlet fluid from the second outlet of the LTS directly into the heat exchanger.
10 more elements
A heat exchanger comprising:
- a first side bar formed from a nickel-iron alloy, wherein the nickel content of the nickel-iron alloy is between about 32% and 42%;
- a second side bar formed from the nickel-iron alloy, the second side bar being spaced from the first side bar;
- a fin element formed from the nickel-iron alloy extending between the first side bar and the second side bar forming a first layer of the heat exchanger, the fin element including an inner passage, thereby defining a fluid passage, the fin element formed from the nickel-iron alloy;
- a first nickel-iron alloy bond joining the fin element and the first side bar;
- and
- a second nickel-iron alloy bond joining the fin element and the second side bar;
- and
- a fluid inlet fluidically connected directly to an outlet of a low temperature separator via a pump.
5 more elements
A cryogenic gas processing system comprising:
- a chiller;
- a low temperature separator (LTS) including an inlet fluidically connected to the chiller, a first outlet and a second outlet;
- a flash drum including an inlet fluidically connected to the LTS and a plurality of outlet conduits;
- a heat exchanger fluidically connected to the second outlet of the LTS and the plurality of outlet conduits of the flash drum, the heat exchanger comprising:
- a first side bar formed from a nickel-iron alloy;
- a second side bar formed from the nickel-iron alloy, the second side bar being spaced from the first side bar;
- a fin element formed from the nickel-iron alloy extending between the first side bar and the second side bar forming a first layer of the heat exchanger, the fin element including an inner passage defining a fluid passage;
- and
- a pump disposed between the heat exchanger and the second outlet of the LTS to convey an outlet fluid from the second outlet of the LTS directly into the heat exchanger.
6 more elements
Dependencies are inferred from the claim text.